The USB fans gifted to journalists covering President Donald Trump's meeting with North Korean leader Kim Jong Un could just be that — a way to stay cool at a hot summit. But experts say it's not worth the risk to find out.

It took Scott Kim, a 32-year-old North Korean defector six years and four escapes to make it to South Korea. After he was sent back the first time, he was brought to a detention camp where he and his fellow inmates were "treated like animals."